Refactor: Cleanup InstructionProcessor (#21404)

* Moves create_message(), native_invoke() and process_cross_program_instruction()
from the InstructionProcessor to the InvokeContext so that they can have a useful "self" parameter.

* Moves InstructionProcessor into InvokeContext and Bank.

* Moves ExecuteDetailsTimings into its own file.

* Moves Executor into invoke_context.rs

* Moves PreAccount into its own file.

* impl AbiExample for BuiltinPrograms

program-runtime/src/lib.rs

@@ -1,9 +1,10 @@
 #![cfg_attr(RUSTC_WITH_SPECIALIZATION, feature(min_specialization))]
 
-pub mod instruction_processor;
 pub mod instruction_recorder;
 pub mod invoke_context;
 pub mod log_collector;
 pub mod native_loader;
 pub mod neon_evm_program;
+pub mod pre_account;
 pub mod stable_log;
+pub mod timings;